Diaphragm horn or alarm.



s. ROSOPSKY. DIAPHRAGM HORN 0R ALARM. APPLICATION FILED 0GT.22,1910.

1,025,998, n Patented May14.1912.

INVENTOR J g 5 1 F FR I n a nr -usu s y,

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113 1 ATTORNEYS.

" Home or Alarms; and I do hereby declare .SOIOMON nosorsntr, ornnoonnrn, new roan.

.nrarnnaem Henri on steam.

To all whom it may;concerh Be it known that I, SOLOMQNJ-RGISOFSKY, acitizen of the United Statesiresidingat Brooklyn, in the county of Kingsand State of New York, have invented certain new and useful.Improvements in Diaphragm the following to be a full, clear, and exactdescription of the invention, such as will enable others skilled in theart to which it appertains to-make and use the same, reference being'hadto the accompanying drawings, and to characters of reference markedthereon, which form a part of'this specification. The present invent-ionrelates, generally,

to improvements in horns, signals, alarms,

and the like; and the invention relates, more particularly, to a novelconstruction of born,

or the like, in which the sound is accomplished by mechanicallyagitating a diaphragm to generate sound waves of high penetratingqii'ality'.

The principal object of the present invention is to provide a simple andefiicient construction of alarm horn, or the like, of few parts andsimple in operation.

A further object of this invention is to provide a, novel means for,agitating the sound wave producing diaphragm; and, furthermore, ameans'whereby saidagitab ing means may be easily adjusted to cause theproduction of the desired note or tone of said alarm-horn.

Other objects of this invention not at this time more particularlyenumerated will be clearly understood from the followingdetaileddescription of the present invention.

With-the-various objects of the present invention in View, the saidinvention consists, generally, in the novel construction of alarmhorn,or the like, hereinafter set forth; and, the inventionronsists,furthermore, in the novel arrangements and combinations of the variousdevices and parts, as well as in the details of the construct-ion of thesame, all of be morefully described in the following specification, andthen'finally embodied in the clauses of the claim which are appended toand which form an essential partof the said specification,

The invention is clearly illustrated'in the accompanying drawings, inwhich: a

Fi ure 1 is aside'view or elevation of the hove construction ofalarm-horn, orf'th'e Specification of Letters Patent.

- piece 13, by means of Patented May 14, 1912.

npp liqatton filed October 22, 1910. I Serial No. 588,431.

I like, made according to and embodying the principles of the presentinvention, the

sound amplifying horn-body being shownin longitudinal section; Fig.2,,is a rear-end view of the same; and, Fig. his a horizontalcross-section of the same taken on line 3- in said Fig. 2, looking in adownwardly directi on.

Similar characters of reference are employed in all of the herein-abovedescribed views to indicate corresponding parts.

Referring now to the several figures of the "drawings, thereference-character lindicates the complete alarm-horn, or the like,made according to and embodying the principles of this invention, thesaid alarm-horn, or.

the like, comprising a shell-like body or cas ing 2 being open at oneend, said shell-like body or easin being provided with an outwardlyexten ing-annula r flange 3, the inner side of which forms a seat.flange being in turn cry with a rim or'flange 4 extending at rightangles thereto. Arranged upon said seat','

formed by said annular flange 3, soas to extend across the opening orsaid shell-l1ke body or, casing "f is a diaphragm '5, the mar saldflange 3 by'means of solder 7, or (ither suitable fastening means. Thereferencecharacter 8 indicates a cover-member provided with an opening 9registering over or above said diaphragm 5. Said opening 9 is surroundedby a suitable shoulder or collar 10 extending outwardly from the outerface of said cover-member. 'Said cover-member S is further provided atits periphery with a Said annular I provided at its periph- ,ginal edges6 of which may be secured to 4 rim or flange 11 extending at rightangles 1 thereto, and adapted to engage and be secured to said rim orflange 4 connected with the flange 3 of said shell-like body or casing 2to properly inclose or cover said diaphragm. Arranged in the body ofsaid member 8 are a plurality of screws 12, g or other similar fasteningdevices, the same being" adapted to engage the margins of said diaphragm.5 to serve as an additional "holding means for firm'ly binding saiddiaphragm upon the seat f rmed by said flange -'3 of said shell-like b0or casing 2. Se-

cured to said cover-mom er 8 in any suitable @finner is an outwardlextendin bracket which said a arm-horn may be supported in a pro orlocation 11 on a vehicle or other place w ereit is desired to use thesame. .Secured by means of setscrews 1st, or any other suitablefastening means, upon said shoulder or collar 10 of said eover-inemberisthe neck of an amplitying horn or megaphone 15, so arranged that itregisters with said opening 9 over or above said diaphragm 5, thepurpose of'said horn. or megaphone being clearly-apparent as a means foramplifying' concentrating and directing the sound waves generated bysaid diaphragmo; Said diaphragm 5 is provided with. a pair ofagitating-elen-ients, each comprising a foot-piece or base 16 adapted tobe secured to'. and abut against the rear or inner side of saiddiaphragm 5,

a rearwardly extending arm 17 connected with said foot-piece, andcontact'finger 18 connected with the free end of said arms 17. The meansfor securing said toot-piece or base in its proper relation with saiddiahra m consists. ireterabl of a )fl'lI of l 9 studs or shanks 19adapted to be passed through holes or openings in the body of saiddiaphragm arranged-for their reception, and the free ends of the samethen be-' -ing riyeted over in the form of a retainingranged incmmection with mg '29. ()no end of saidshattlilext-ends inhead 20-upontheopp'osite' surface of said diaphragm 5. Each of said rearwardlyextending arms 17 is provided with a hole'or opening 21 the inner edgesof which are formed with a chamfer 22 adapted to provide a seat for thehead 23 of an adjusting pin 94. The free end of said adjusting pin v 23extends through a suitable opening in the walls of said shell-like bodyor casing 2, provided for that purpose, and said free end is providedwith a suitable screw-thread 25 upon which is arranged an adjusting-nut26 which bears against. the outer surface of said shell-like body orcasing 2. One of the sides of said shell-like body or casing 2 isprovided with a hole or opening the marginal edge of which is providedwith an outvvardly extending shoulder or collar 27. Arranged in saidhole or opening and secured to said shoulder or collar by means ofsuitably arranged retaining screws 28, or

the like, is the casing 25) of a small electric motor -30. Said casing:29 being provided with suitably arranged binding-posts 31 for securingin proper connection the current. supplying or conveying wires 32. The armature o'l? said motor rotates a shaft 33 mounted in suitz'ihlc hmiriugpieces rlel armotor-caswardly into lh: interior of said shelldike bodyor casing Secured in any suitable manner upon said inner end ol saidshaft. 33, which is within said shell-like body or casing 52, is uvil'n'ntornvhcel 35, having upon its periphery any desired number ofeaurmembers 36. hild viln-ator-wheel 35 is arranged in such a nuiuoerthat when the same rotates its cam-men'ibers 36 are brought into contactwith said contact-fin gcrs 18 of said agitating elements, whereby thesame are Caused to vibrate in a manner to transmit such vibrations tosaid diaphragm 5, so that the latter is in turn agitated or vibrated toproduce the desired sound-waves. It will be clearly evident from aninspection of Fig. dot the accompanying drawings, that the adjustingmeans, comprised in said adjusting pins 24: and their respective nuts26, may be so operated as to move a greater or less portion of saidcontact-fingers 18 into the path of said cammembers 36 of saidvibrator-wheel 35. whereby a greater or less vibration or agitation ofsaid diaphragm 5tmay be brought about and afconsequent regulation of thepitch or tonal sound waves produced by said diaphragm maybe obtained. Itwill thus. be evident that the novel alarm-horn, or the like, may betuned to produce the desired sound having the desired degree ofpenetrability and carrying power sufiicient to produce a proper alarm.It wilh furthermore, be understood that the leverage ofthe agitatingelements which are secured upon to give the warning desired to beproduced.

- I am fully aware that changes may be made in the various arrangementsand coin- .binations of the several devices and parts,

as well as in the details of the construction of the same withoutdeparting from the scope of my present invention, as described in theforegoing specification and as defined in the claims which are appendedthereto. Hence, I do not limit my invention to the exact arrangementsand combinations of the various devices and parts as set forth in thesaid specification, nor do I confine myself to the exact details of theconstruction of the said, parts illustrated in th accompanying drawings.

I claim:

1 An alarm-horn, or the like, comprising a casing, a diaphragm securedover the open end of said casing, agitating elements connected with saiddiaphragm, each comprising a foot-piece pro'ided with means tor rigidlysecuring the same to said diaphragm, a rearwardly extending armconnected with said toot-piece a contact-linger connected with the freeend of said arm, a means arranged within said casing for vibrating saidagitating elements comprising an electric motor, a vibrator-winecl.connected with the shaft of said motor and ro- 'tated thereby, saidvibrahir-wheel being:- pro- Mater-Wheel is rotated, and means forregulating the contact of said contact iingers with said Cain-portionsof said vibratorivheel, comprising an adjusting pin loosely connectedwith said rearwardly extending arm of each. agitating element, saidadjusting pin. being adapted to suitable opening in, said casing,screwthreads on the free ends of said adjustingpins, and adjusting-nutsarranged upon Said screw-threads.

2; An alarm-horn, or the like, comprising a casing open at one end, aIiangeproviding a diaphragm seat a i the open end of said casing, adiaphragm secured upon said seat and extending across the open end ofsaid casing, a cover-member provided with an opening secured upon theopen end of said casing and extending in front of the outer face of saiddiaphragm, a horn or megaphone, means connected with said count-memberfor supporting said horn or megaphone in registration with said opensaidcover-member, agitating elements connected with said diaphragm, eachcomprising, a footpiece provided With means for rigidly securing thesame to said diaphragm, a renrwardly extending arm connected with saidfoohpiece, a contactfinger connected with the free end or" said arm, ameans arranged within said casing "for vibrating saio agitatingelements, comprising an electric motor, a vibrator-Wheel connected withthe shaft of said motor and rotated thereby, said vibrator-wheel beingprovided with a plurality of cam-portions adapted to engage with saidcontact-fingers of said agitating-elements when said vibrator-Wheel isrotated, and means for regulating the contact of said contact-fingerswith said cam-portions of said vibrator-wheel,

comprising an adjusting pin loosely connected with said rearwardlyextending arm of each agitating element, said ad usting pin beingadapted to'pass through a suitable opening in said casing, screwtl1reads on the free ends of said ad usting pins, and

Jase throu h a A b arranged to rotate Within said casing and in contactwith said contact-fingers of each agitating element, and means forregulating the contact of said. contact-fingers with saidvibrator-Wheel, comprising an adjusting pin loosely connected with saidrearwardly extending arm of each agitatingiel-ement, said adjusting pinbeing adapted to pass through asuitable opening in said casing,screw-threads on the free ends of said adjusting pins, andadjusting-nuts arranged upon said screw-threads.

4. In an alarm-h0rn, the combination, with a casing of a diaphragm,rearwardly. extending arms rigidly connected with said diaphragm,contact-fingers connected with said arms. arotatable vibrator-Wheel,camportions onsaid vibrator-wheel adapted to travel in the path of andin contact with. said contact-fingers when said vibratorwheel isrotated, and means for regulating the contact of said contact-fingersWith said cam-portions of said vibrator-Wheel, comprising adjusting pinsloosely connected with. each rearwardly extending arm, saidadjusting-pins being adapted. to pass through suitable openings in saidcasing, screw-threads on the'free ends of. said adjusting pins, andadjusting-nuts arranged upon said screw-threads.

In testimony, that I clainithe invention set forth above I have hereuntoset nrvhand this 19th day of October, 1910.

SOLOMGN ROSOFSKY Vi itnesses Gnonon D. Rronnnns, Aoonrn Hansen.

Copies of this patent may be obtained for five cents each, by addressingthe Gommissioner o1 Patents, Washington, D. G.

